1 files changed, 1 insertions, 1 deletions

diff --git a/src/sp_utils.c b/src/sp_utils.c
index eeebcc4..82714c5 100644
--- a/src/sp_utils.c
+++ b/src/sp_utils.c
@@ -395,7 +395,7 @@ bool sp_match_array_value(const zval* arr, const zend_string* to_match, const sp
   return false;
 }
 
-bool /* success */ _hook_function(const char* original_name, HashTable* hook_table, zif_handler new_function) {
+static bool /* success */ _hook_function(const char* original_name, HashTable* hook_table, zif_handler new_function) {
   zend_function* func;
   if ((func = zend_hash_str_find_ptr(CG(function_table), VAR_AND_LEN(original_name)))) {
     if (func->type != ZEND_INTERNAL_FUNCTION) {